frog taxonomy

Cover Image: Rana rugosa ( Japanese wrinkled frog ) and Bufo Vulgaris ( Common toad ) / Yamamoto Keigu 1868 – ALAMY Image ID:3A74D9W Original Notes (Japanese): 蝦蟆 – 加閇留（カヘル）、蟾蜍 – 比岐加閇留（ヒキガヘル）